Miley Cyrus' romance with fiance Liam Hemsworth has barely been out of the headlines over the last few months, with the latest claims alleging the We Can't Stop babe was spotted kissing another man on a recent night out.

The couple, who became engaged last year after three years together, have been rocked by allegations of fighting and claims they've called their wedding off since February this year.

InTouch Weekly have now claimed, days before her controversial appearance at the MTV Video Music Awards, the 20 year-old was out with presenter Rob Dyrdek in New York at 10ok nightclub and got "out of control" with her partying, according to witnesses.

The alleged witness went on to claim the blonde was seen kissing another man. Liam Hemsworth didn't support Miley on the night as she took to the stage with Robin Thicke, with insiders claiming the couple had been arguing earlier in the day.

"Miley and Liam had an argument the day of the show," a source told HollywoodLife. "She was really upset and she took it all out onstage, so the performance got even crazier than they had planned because Miley was really amped up."

Liam flew to London a week after the VMAs to support big brother Chris Hemsworth as he promoted new movie Rush. Insiders have since claimed he was "mortified" by her car-crash performance.

“Liam really does care about Miley, but her racy new look and sort of ghetto attitude isn’t exactly what he signed up for,” a pal told RadarOnline. “Her VMA performance absolutely mortified him and he couldn’t be more embarrassed. He doesn’t really see anything sexy about what she did on stage.”

The inside source goes on to claim that Liam is being urged to break things off from Miley once and for all: “It’s not just Liam that Miley is pushing away…his entire team is urging him to part ways with her because she’s nothing but negative for his reputation and career,” the source alleges.

Liam looks pretty daper as he arrives at the Rush afterparty (TGB/Splash News)

“Liam is a serious actor with a growing career, while Miley has just turned into a joke.” "It’s pretty much over. He knows he can’t stay with her when this is who she’s become,” the source concluded. “He doesn’t want to babysit her anymore. He has to move on.”